This is a recaps film. Skip it if you've already watched Season 1, it strips away the worldbuilding that makes Overlord interesting and leaves you with 90 minutes of combat divorced from context. Only watch this if you need a refresher before Season 2, or if you're the type who wants to see Nazarick's early raids without the slower political setup in between.
Momonga stands at the threshold of absolute power. Once a human trapped in the body of an undead sorcerer, he now commands Nazarick, a massive underground fortress filled with loyal subordinates of terrifying strength. But ruling a dungeon means more than just wielding magic. It means building a reputation, forging alliances, and proving that the overlord is a force that cannot be ignored. As word spreads across the realm, adventurers begin to take notice. Some seek glory by challenging the dungeon. Others approach with caution, recognizing the threat. Momonga must navigate these encounters carefully, using both strategy and overwhelming force to cement his dominance while unraveling the mysteries of how he arrived in this world at all. What starts as a quest for survival transforms into something grander: the establishment of a dark empire. Every decision ripples outward, every action calculated. This is the origin story of a villain written in blood and ambition.